package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    private MemberService memberService;
    @Reference
    private ReportService reportService;
    @RequestMapping("/getMemberReport")
    public Result getMemberReport(){
        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.MONTH,-12);
        List<String> list = new ArrayList<>();
            for(int i = 0;i<12;i++){
                calendar.add(Calendar.MONTH,1);
                list.add(new SimpleDateFormat("yyyy.MM").format(calendar.getTime()));
            }
            Map<String,Object> map = new HashMap<>();
            map.put("months",list);
            List<Integer> memberList = memberService.findMemberCountByMonth(list);
            map.put("memberCount",memberList);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
    }
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport(){
        Map<String,Object> data = new HashMap<>();
        try {
            List<String> setmealNames = new ArrayList<>();
            List<Map<String, Object>> list = memberService.getSetmealReport();
            for (Map<String, Object> map : list) {
                String setmealName = (String)map.get("name");
                setmealNames.add(setmealName);
            }
            data.put("setmealNames",setmealNames);
            data.put("setmealCount",list);
            return new Result(true,MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData(){
        try {
            Map<String, Object> data = reportService.getBusinessReport();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletResponse response, HttpServletRequest request){
        try {
            Map<String, Object> result = reportService.getBusinessReport();
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
            String filePath = request.getSession().getServletContext().getRealPath("template")+ File.separator+"report_template.xlsx";
            XSSFWorkbook sheets = new XSSFWorkbook(new FileInputStream(new File(filePath)));
            XSSFSheet sheet = sheets.getSheetAt(0);
            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);
            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数
            int rowNum = 12;
            for (Map map : hotSetmeal) {
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum++);
                row.getCell(4).setCellValue(name);
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }
            String fileName = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date())+".xlsx";
            OutputStream outputStream = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");//代表的是Excel文件类型
            response.setHeader("content-Disposition", "attachment;filename=report"+fileName);//指定以附件形式进行下载

            sheets.write(outputStream);
            outputStream.flush();
            outputStream.close();
            sheets.close();
            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}
